Photovoltaic silicon rod three-in-one positioning device

Abstract

The application belongs to the field of automation and discloses a photovoltaic silicon rod three-in-one positioning device. The device comprises a bottom frame, a crystal holder positioning and adhesive plate length positioning mechanism, an adhesive plate width positioning mechanism and a silicon rod width positioning mechanism arranged on the bottom frame, and a detection switch mechanism arranged on one side of the bottom frame. The device adopts a novel crystal holder and adhesive plate head end alignment mode, can automatically adapt to crystal holders and adhesive plates of multiple specifications, saves the step of manually adjusting the specifications, is safe and reliable, and greatly improves the production efficiency and the yield.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of automation, and relates to a photovoltaic silicon rod three-in-one positioning device. BACKGROUND

[0002] In the field of automation of the photovoltaic industry, square silicon rods need to be inverted and hung into a slicing machine to be cut into thin silicon wafers. In order to realize the hanging of the square silicon rod and the non-falling of the silicon wafer after being cut, the silicon rod, the adhesive plate and the crystal holder need to be sequentially bonded in the order of top and bottom. The traditional silicon rod three-in-one positioning device needs to lift the bottom crystal holder, indirectly position the position of the crystal holder through the dovetail sliding groove at the bottom of the crystal holder, and clamp the silicon rod after positioning the four corners of the adhesive plate through two air cylinders, so as to realize the length and width direction positioning of the three. Since the precision of the crystal holder itself is low, a large error is generated by indirect positioning, and there is also a large error in the alignment of the head end of the adhesive plate and the crystal holder, which cannot well meet the process requirements. Since the adhesive plate has many specifications, the traditional way often needs to manually adjust the adhesive plate pressing block in order to adapt to multiple specifications. The operation process has more actions, low efficiency and low yield, which greatly reduces the production efficiency. SUMMARY

[0003] The purpose of the application is to overcome the deficiencies in the background art, so that the silicon rod three-in-one positioning device can better realize industrial automation production and meet the high efficiency and stability required by industrial production, and provide a photovoltaic silicon rod three-in-one positioning device which adopts a novel crystal holder and adhesive plate head end alignment method and can automatically adapt to multiple specifications of crystal holders and adhesive plates, thereby saving the step of manually adjusting the specifications, being safe and reliable, and greatly improving the production efficiency and yield.

[0004] The technical scheme adopted by the application to solve the technical problems is: a photovoltaic silicon rod three-in-one positioning device, comprising a bottom frame; the bottom frame is provided with a crystal holder positioning and adhesive plate length positioning mechanism, an adhesive plate width positioning mechanism and a silicon rod width positioning mechanism; one side of the bottom frame is provided with a detection switch mechanism.

[0005] The crystal holder positioning and adhesive plate length positioning mechanism comprises two length clamping connecting frames arranged symmetrically left and right; two straight line guides A are arranged below the two length clamping connecting frames, and the two length clamping connecting frames are slid on the two straight line guides A through sliders to realize left and right movement; a crystal holder centering cylinder is arranged below the two length clamping connecting frames, and a cylinder connecting frame A is arranged at a corresponding position of the bottom of each length clamping connecting frame and the crystal holder centering cylinder, and the cylinder connecting frame A and the crystal holder centering cylinder are movably connected through a connecting pin; a length positioning front gripper is mounted at the front end of the length clamping connecting frame; a fixed stop block and a centering pulley are mounted on the length positioning front gripper; a tail straight line guide is arranged on the upper surface of the rear end of the length clamping connecting frame; a length positioning rear gripper is arranged on the tail straight line guide; a crystal holder length positioning cylinder is arranged on the side surface of the tail of the length clamping connecting frame; the crystal holder length positioning cylinder is connected with the length positioning rear gripper through a length positioning cylinder connecting plate; a crystal holder pushing stop block and a centering pulley are arranged on the length positioning rear gripper; a connecting plate is further arranged on the tail straight line guide, and an adhesive plate length positioning support is arranged on the connecting plate; an adhesive plate length positioning stop block is arranged at the front end of the adhesive plate length positioning support; the adhesive plate length positioning cylinder is connected with the adhesive plate length positioning support through an adhesive plate length positioning cylinder connecting frame and the connecting plate.

[0006] The adhesive plate width positioning mechanism comprises two adhesive plate width positioning connecting frames arranged symmetrically left and right; two straight line guides B are arranged below the two adhesive plate width positioning connecting frames; the two adhesive plate width positioning connecting frames are slid on the two straight line guides B through sliders to realize left and right movement; an adhesive plate width centering cylinder is arranged below the two adhesive plate width positioning connecting frames, a cylinder connecting frame B is arranged at a corresponding position of the bottom of each adhesive plate width positioning connecting frame and the adhesive plate width centering cylinder, and the cylinder connecting frame B and the adhesive plate width centering cylinder are movably connected through a connecting pin; two adhesive plate width centering stop blocks are respectively mounted on the upper parts of the two adhesive plate width positioning connecting frames.

[0007] The silicon rod width positioning mechanism comprises two silicon rod width positioning connecting frames arranged symmetrically left and right, two straight line guides C are arranged below the two silicon rod width positioning connecting frames, and the two silicon rod width positioning connecting frames are slid on the two straight line guides C through sliders to realize left and right movement; a silicon rod width positioning cylinder is arranged below the silicon rod width positioning connecting frame, and the silicon rod width positioning cylinder is connected with the silicon rod width positioning connecting frame through a silicon rod cylinder connecting frame; an adjusting rack connecting frame is arranged at the bottom of each silicon rod width positioning connecting frame, a rack is arranged on each adjusting rack connecting frame, two racks are respectively connected with two sides of the same centering gear, and the two racks realize synchronous opposite movement through meshing with the centering gear; a silicon rod positioning push plate is arranged on the upper part of each silicon rod width positioning connecting frame.

[0008] The crystal holder centering cylinder and the adhesive plate width centering cylinder are open clamp cylinders, preferably HFT type open clamp cylinders.

[0009] The bottom frame comprises a frame body, the bottom of which is connected with the ground through ground feet, each of which is provided with an adjusting ground bolt for installation leveling. Preferably, four ground feet are provided.

[0010] The detection switch mechanism comprises a detection switch support fixed on the bottom frame through bolts and a lower connecting plate; the upper part of the detection switch support is provided with a silicon rod incoming material detection switch, a viscose plate incoming material detection switch and a crystal holder incoming material detection switch.

[0011] When the whole device is actually used, it is placed below the conveying line, and the conveying roller is placed in the middle position of the device.

[0012] Further, the bottom frame is sequentially provided from the inside to the outside with a crystal holder positioning and viscose plate length positioning mechanism, a viscose plate width positioning mechanism and a silicon rod width positioning mechanism.

[0013] Further, the bottom two sides of the crystal holder positioning and viscose plate length positioning mechanism are connected with the bottom frame through linear guide rails A and sliding blocks. The bottom two sides of the viscose plate width positioning mechanism are connected with the bottom frame through linear guide rails B and sliding blocks. The bottom two sides of the silicon rod width positioning mechanism are connected with the bottom frame through linear guide rails C and sliding blocks.

[0014] Further, a connecting pin is arranged at the front end of the crystal holder centering cylinder, a plurality of pin holes are arranged on the cylinder connecting frame A, and the connecting pin is movably connected with the pin holes in the cylinder connecting frame A under the driving of the crystal holder centering cylinder. The left and right movement of the length clamping connecting frame is driven by the extension and contraction of the crystal holder centering cylinder. The crystal holder is clamped by the centering pulleys on the length positioning front gripper and the length positioning rear gripper through the contraction of the crystal holder centering cylinder, so that the crystal holder is centered in the width direction.

[0015] Further, the crystal holder centering cylinder is fixed on the bottom frame through the cylinder mounting frame arranged at the bottom.

[0016] Further, the length positioning rear gripper moves on the tail linear guide rail through the sliding block. The crystal holder push block moves forward and backward by driving the length positioning rear gripper through the extension and contraction of the crystal holder length positioning cylinder, so as to push the crystal holder to move forward until the shoulder of the crystal holder moves to the fixed block and stops.

[0017] The viscose plate length positioning block on the viscose plate length positioning bracket moves forward and backward by driving the viscose plate length positioning cylinder, so as to push the viscose plate to move forward until the front end of the viscose plate moves to the fixed block and stops. Thus, the front ends of the crystal holder and the viscose plate are aligned with the fixed block.

[0018] Further, the connecting pin is arranged at the front end of the width centering cylinder of the adhesive plate, a plurality of pin holes are arranged on the cylinder connecting frame B, and the connecting pin is movably connected with the pin holes in the cylinder connecting frame B under the driving of the width centering cylinder of the adhesive plate. The width centering block on the width positioning connecting frame of the adhesive plate is clamped through the contraction of the width centering cylinder of the adhesive plate, so that the width direction of the adhesive plate is centered.

[0019] Further, the width centering cylinder of the adhesive plate is fixed on the bottom frame through bolts.

[0020] Further, the centering gear is fixed on the bottom frame through a gear shaft, and the silicon rod width positioning cylinder is arranged on the bottom frame through bolts. The cylinder rod of the silicon rod width positioning cylinder is extended to drive the silicon rod width positioning connecting frame and the rack thereon to move, and the rack is transferred through the centering gear to drive the rack on the opposite side and the silicon rod width positioning connecting frame connected with the rack to move, so that the silicon rod positioning push plate clamps the silicon rod, and the width direction of the silicon rod is centered.

[0021] Further, the device is also provided with a PLC control system, and the crystal holder centering cylinder, the crystal holder length positioning cylinder, the adhesive plate length positioning cylinder, the adhesive plate width centering cylinder, the silicon rod width positioning cylinder, the silicon rod incoming detection switch, the adhesive plate incoming detection switch and the crystal holder incoming detection switch are connected with the PLC system. Any specific model is not limited, and the working function is realized.

[0022] Compared with the prior art, the photovoltaic silicon rod three-in-one positioning device has the following advantages:

[0023] The photovoltaic silicon rod three-in-one positioning device provided by the application can realize three-in-one positioning of the silicon rod, the adhesive plate and the crystal holder through end alignment, rear pushing and synchronous step-by-step width centering, can automatically adapt to adhesive plates and crystal holders of different specifications, and has high stability and high production efficiency.

[0024] Compared with the prior art, the photovoltaic silicon rod three-in-one positioning device provided by the application has the following advantages:

[0025] 1. The photovoltaic silicon rod three-in-one positioning device provided by the application can improve the alignment accuracy of the crystal holder and the adhesive plate due to the improved head end alignment method.

[0026] 2. The photovoltaic silicon rod three-in-one positioning device provided by the application can automatically adapt to adhesive plates and crystal holders of different specifications, improve the automation degree of the production line, and greatly improve the production efficiency.

[0027] 3. The photovoltaic silicon rod three-in-one positioning device provided by the application can avoid human error caused by manual adjustment and adaptation to multiple specifications, and improve the yield.

[0028] 4. The photovoltaic silicon rod three-in-one positioning device provided by the application can avoid safety risks caused by manual auxiliary operation.

[0029] 5. The photovoltaic silicon rod three-in-one positioning device provided by the application has high stability and long service life, and is suitable for industrial batch use. BRIEF DESCRIPTION OF DRAWINGS

[0030] The application will be further described below in combination with the drawings and examples:

[0031] Figure 1 is a perspective view of the photovoltaic silicon rod three-in-one positioning device provided by the application.

[0032] Figure 2 is a schematic view of the photovoltaic silicon rod three-in-one positioning device provided by the application in operation.

[0033] Figure 3 is a schematic view of the wafer holder positioning and adhesive plate length positioning mechanism provided by the application.

[0034] Figure 4 is a schematic view of the adhesive plate width positioning mechanism provided by the application.

[0035] Figure 5 is a perspective view of the silicon rod width positioning mechanism provided by the application.

[0036] Figure 6 is a schematic view of the silicon rod width positioning mechanism provided by the application.

[0037] Figure 7 is a schematic view of the bottom frame structure provided by the application.

[0038] Figure 8 is a schematic view of the detection switch structure provided by the application.

[0039] Figure 9 is a perspective view of the silicon rod, adhesive plate and wafer holder adhesive position provided by the application.

[0040] Figure 10 is a front view of the silicon rod, adhesive plate and wafer holder adhesive position provided by the application.

[0041] Figure 11 is a front view of the wafer holder.

[0042] Figure 12 is a side view of the wafer holder.

[0043] Figure 13 is a perspective view of the wafer holder.

[0044] Figure 14 is a wafer holder shoulder indication diagram.

[0045] Figure 15 is a wafer holder stop conveying position diagram.

[0046] Figure 16 is a schematic view of the width centering of the crystal holder.

[0047] Fig. 1 is a crystal holder positioning and adhesive plate length positioning mechanism, Fig. 2 is an adhesive plate width positioning mechanism, Fig. 3 is a silicon rod width positioning mechanism, Fig. 4 is a bottom frame, Fig. 5 is a detection switch mechanism, Fig. 6 is a silicon rod, Fig. 7 is an adhesive plate, Fig. 8 is a crystal holder, Fig. 9 is a conveying roller, Fig. 10 is a roller, Fig. 101 is a linear guide rail A, Fig. 102 is a length clamping connecting frame, Fig. 103 is a fixed stop block, Fig. 104 is a length positioning front gripper, Fig. 105 is a centering pulley, Fig. 106 is a cylinder connecting frame A, Fig. 107 is a crystal holder centering cylinder, Fig. 108 is a cylinder mounting frame, Fig. 109 is a crystal holder length positioning cylinder, Fig. 110 is a length positioning cylinder connecting plate, Fig. 111 is an adhesive plate length positioning cylinder, Fig. 112 is a length positioning rear gripper, Fig. 113 is a crystal holder pushing stop block, Fig. 114 is an adhesive plate length positioning stop block, Fig. 115 is an adhesive plate length positioning support, Fig. 116 is an adhesive plate length positioning cylinder connecting frame, Fig. 117 is a tail linear guide rail, Fig. 201 is an adhesive plate width centering stop block, Fig. 202 is an adhesive plate width positioning connecting frame, Fig. 203 is a cylinder connecting frame B, Fig. 204 is a linear guide rail B, Fig. 205 is an adhesive plate width centering cylinder, Fig. 301 is a silicon rod positioning push plate, Fig. 302 is a silicon rod width positioning connecting frame, Fig. 303 is an adjusting rack connecting frame, Fig. 304 is a rack, Fig. 305 is a centering gear, Fig. 306 is a gear shaft, Fig. 307 is a silicon rod cylinder connecting frame, Fig. 308 is a linear guide rail C, Fig. 309 is a silicon rod width positioning cylinder, Fig. 401 is a frame main body, Fig. 402 is an adjusting anchor bolt, Fig. 501 is a detection switch support, Fig. 502 is a silicon rod incoming material detection switch, Fig. 503 is an adhesive plate incoming material detection switch, Fig. 504 is a crystal holder incoming material detection switch, and Fig. 505 is a lower connecting plate. DETAILED DESCRIPTION

[0048] The present application is further described below in conjunction with the accompanying drawings of the specification, but the present application is not limited to the following examples. In the examples, the crystal holder centering cylinder, the adhesive plate length positioning cylinder, the silicon rod width positioning cylinder, the silicon rod incoming material detection switch, the adhesive plate incoming material detection switch, and the crystal holder incoming material detection switch connected with the PLC control system are not limited to a specific model, and the working functions thereof are realized. The crystal holder centering cylinder and the adhesive plate width centering cylinder are selected to be open clamping cylinders, and preferably HFT type open clamping cylinders.

[0049] Example 1

[0050] A photovoltaic silicon rod three-in-one positioning device, as shown in Figures 1-16 Fig. 1, comprises a bottom frame 4; the bottom frame 4 is provided with a crystal holder positioning and adhesive plate length positioning mechanism 1, an adhesive plate width positioning mechanism 2, and a silicon rod width positioning mechanism 3; one side of the bottom frame 4 is provided with a detection switch mechanism 5.

[0051] The crystal holder positioning and adhesive plate length positioning mechanism 1 comprises two left and right symmetrical length clamping connecting frames 102; two straight linear guides A 101 are arranged below the two length clamping connecting frames 102, and the two length clamping connecting frames 102 slide on the two straight linear guides A 101 through sliders to realize left and right movement; a crystal holder centering cylinder 107 is arranged below the two length clamping connecting frames 102, and a cylinder connecting frame A 106 is arranged at a position corresponding to the crystal holder centering cylinder 107 on each of the two length clamping connecting frames 102; the cylinder connecting frame A 106 and the crystal holder centering cylinder 107 are movably connected through a connecting pin; a length positioning front gripper 104 is installed at the front end of the length clamping connecting frame 102; a fixed stop block 103 and a centering pulley 105 are installed on the length positioning front gripper 104; a tail straight linear guide 117 is arranged on the upper surface of the rear end of the length clamping connecting frame 102; a length positioning rear gripper 112 is arranged on the tail straight linear guide 117; a crystal holder length positioning cylinder 109 is arranged on the side surface of the tail of the length clamping connecting frame 102; the crystal holder length positioning cylinder 109 is connected with the length positioning rear gripper 112 through a length positioning cylinder connecting plate 110; a crystal holder pushing stop block 113 and a centering pulley are arranged on the length positioning rear gripper 112; a connecting plate is further arranged on the tail straight linear guide 117, and an adhesive plate length positioning support 115 is arranged on the connecting plate; an adhesive plate length positioning stop block 114 is arranged at the front end of the adhesive plate length positioning support 115; an adhesive plate length positioning cylinder 111 is connected with the adhesive plate length positioning support 115 through an adhesive plate length positioning cylinder connecting frame 116 and the connecting plate.

[0052] The adhesive plate width positioning mechanism 2 comprises two left and right symmetrical adhesive plate width positioning connecting frames 202; two straight linear guides B 204 are arranged below the two adhesive plate width positioning connecting frames 202; the two adhesive plate width positioning connecting frames 202 slide on the two straight linear guides B 204 through sliders to realize left and right movement; an adhesive plate width centering cylinder 205 is arranged below the two adhesive plate width positioning connecting frames 202; a cylinder connecting frame B 203 is arranged at a position corresponding to the adhesive plate width centering cylinder 205 on the bottom of each of the two adhesive plate width positioning connecting frames 202; the cylinder connecting frame B 203 and the adhesive plate width centering cylinder 205 are movably connected through a connecting pin; two adhesive plate width centering stop blocks 201 are respectively installed on the upper parts of the two adhesive plate width positioning connecting frames 202.

[0053] The silicon rod width positioning mechanism 3 comprises two silicon rod width positioning connecting frames 302 arranged symmetrically left and right, two straight linear guides C 308 are arranged below the two silicon rod width positioning connecting frames 302, and the two silicon rod width positioning connecting frames 302 are slid on the two straight linear guides C 308 through sliding blocks to realize left and right movement; one of the silicon rod width positioning connecting frames 302 is provided below with a silicon rod width positioning cylinder 309, the silicon rod width positioning cylinder 309 is connected with the silicon rod width positioning connecting frame 302 through a silicon rod cylinder connecting frame 307; the bottom of each of the two silicon rod width positioning connecting frames 302 is provided with an adjusting rack connecting frame 303, a rack 304 is arranged on each adjusting rack connecting frame 303, and the two racks 304 are connected with the two sides of the same centering gear 305 respectively, and the two racks 304 realize synchronous opposite movement through meshing with the centering gear 305; a silicon rod positioning push plate 301 is arranged on the upper part of each silicon rod width positioning connecting frame 302.

[0054] The bottom frame 4 comprises a frame main body 401, the frame main body 401 is connected with the ground through a foot at the bottom, and an adjusting foot bolt 402 is arranged on each foot for installation and leveling. Preferably, four feet are arranged.

[0055] The detection switch mechanism 5 comprises a detection switch support 501, which is fixed on the bottom frame 4 through bolts and a lower connecting plate 505; the detection switch support 501 is provided at the upper part with a silicon rod incoming material detection switch 502, a viscose plate incoming material detection switch 503 and a crystal holder incoming material detection switch 504.

[0056] When the whole device is actually used, it is placed below the conveying line, and the conveying roller 9 is placed in the middle position of the whole device for use.

[0057] From inside to outside on the bottom frame 4, a crystal holder positioning and viscose plate length positioning mechanism 1, a viscose plate width positioning mechanism 2 and a silicon rod width positioning mechanism 3 are arranged in sequence.

[0058] The crystal holder positioning and viscose plate length positioning mechanism 1 is connected with the bottom frame 4 through straight linear guides A 101 and sliding blocks at the bottom of both sides. The viscose plate width positioning mechanism 2 is connected with the bottom frame 4 through straight linear guides B 204 and sliding blocks at the bottom of both sides. The silicon rod width positioning mechanism 3 is connected with the bottom frame 4 through straight linear guides C 308 and sliding blocks at the bottom of both sides.

[0059] The connecting pin is arranged at the front end of the crystal holder centering cylinder 107, a plurality of pin holes are arranged on the cylinder connecting frame A 106, and the connecting pin is movably connected with the pin holes in the cylinder connecting frame A 106 under the driving of the crystal holder centering cylinder 107. Further, the crystal holder centering cylinder 107 is fixed on the bottom frame 4 through a cylinder mounting frame 108 arranged at the bottom.

[0060] The length positioning front and rear grippers 112 achieve movement on the tail linear guide rail 117 through a sliding block.

[0061] The connecting pin is arranged at the front end of the width centering cylinder 205 of the viscose board, and a plurality of pin holes are arranged on the cylinder connecting frame B 203. The connecting pin is movably connected to the pin hole in the cylinder connecting frame B 203 under the driving of the width centering cylinder 205 of the viscose board.

[0062] The width centering cylinder 205 of the viscose board is fixed on the bottom frame 4 through bolts.

[0063] The centering gear 305 is fixedly arranged on the bottom frame 4 through a gear shaft 306. The width positioning cylinder 309 of the silicon rod is arranged on the bottom frame 4 through bolts.

[0064] The device is also provided with a PLC control system. The crystal holder centering cylinder 107, the crystal holder length positioning cylinder 109, the viscose board length positioning cylinder 111, the viscose board width centering cylinder 205, the silicon rod width positioning cylinder 309, the silicon rod incoming detection switch 502, the viscose board incoming detection switch 503, and the crystal holder incoming detection switch 504 are connected to the PLC system. Any specific model is not limited, and the working function is achieved.

[0065] The above-mentioned photovoltaic silicon rod three-in-one positioning device is used in the specific working condition as shown in the figure. Figure 2 The conveying roller 9 stands on the ground, the crystal holder is placed on the roller 10 in the conveying roller 9, and is conveyed forward with the roller 10. The silicon rod 6 and the viscose board 7 are placed on the crystal holder 8 in turn, and are coated with glue on the contact surface. The three-in-one positioning device is located below the conveying roller 9. The shape of the crystal holder 8 is as shown in the figure. Figures 11-14 The silicon rod 6, the viscose board 7, and the crystal holder 8 are glued as shown in the figure. Figures 9-10

[0066] Before the three-in-one positioning device works, the conveying roller 9 conveys the silicon rod 6, the viscose board 7, and the crystal holder 8 after being bonded together to a position 20 mm away from the fixed stop block 103 through the roller 10, as shown in the figure. Figure 15 The crystal holder incoming detection switch 504 detects that the crystal holder 8 is in place, and sends a signal to prompt the three-in-one positioning device to start working. The working steps are as follows: the crystal holder centering cylinder 107 is retracted, the length positioning front and rear grippers 104 and 112 are clamped to the centering pulley 105, the crystal holder 8 is clamped, so that the crystal holder 8 is centered in the width direction, as shown in the figure. Figure 16 ​The contraction of the length positioning cylinder 109 drives the push block 113 on the length positioning back gripper 112 of the crystal holder to push the crystal holder 8 to move forward until the shoulder of the crystal holder 8 stops at the fixed block 103. The contraction of the length positioning cylinder 111 of the adhesive plate drives the length positioning block 114 on the length positioning bracket 115 of the adhesive plate to push the adhesive plate 7 to move forward until the front end of the adhesive plate 7 stops at the fixed block 103. Thus, the front ends of the crystal holder 8 and the adhesive plate 7 are aligned with the fixed block 103. The contraction of the width centering cylinder 205 drives the width centering block 201 on the width positioning bracket 202 of the adhesive plate to clamp the adhesive plate 7, thus centering the adhesive plate 7 in the width direction. The extension of the width positioning cylinder 309 drives the rack 304 connected thereto and the width positioning bracket 302 to move, which, through the intermediate transfer of the centering gear 305, drives the rack 304 on the other side and the width positioning bracket 302 connected thereto to move, thus clamping the silicon rod 6 by the width positioning push plate 301, and centering the silicon rod 6 in the width direction. Thus, the work is completed, and each component returns to the initial state in turn.

[0067] In order to achieve the relative position between the silicon rod 6, the adhesive plate 7 and the crystal holder 8 to meet the corresponding process precision requirements, the silicon rod three-in-one positioning device is needed to position the three in the length and width directions. In order to meet the process requirements, the front ends of the adhesive plate 7 and the crystal holder 8 need to be aligned in the length direction, and centered in the width direction. The silicon rod 6 needs to be centered with the adhesive plate 7 and the crystal holder 8 in the width direction.

[0068] Although the present application has been described in detail in the foregoing description with general principles and specific embodiments, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application are within the scope of the present application.

Claims

1. A photovoltaic silicon rod trilateralization device, characterized by, The application relates to a crystal holder positioning and adhesive plate length positioning mechanism (1), an adhesive plate width positioning mechanism (2) and a silicon rod width positioning mechanism (3) which are arranged on a bottom frame (4); and a detection switch mechanism (5) is arranged on one side of the bottom frame (4). The crystal holder positioning and adhesive plate length positioning mechanism (1) comprises two length clamping connecting frames (102) which are symmetrically arranged left and right; two straight line guide rails A (101) are arranged below the two length clamping connecting frames (102); the two length clamping connecting frames (102) slide on the two straight line guide rails A (101) through sliding blocks to realize left and right movement; a crystal holder centering cylinder (107) is arranged below the two length clamping connecting frames (102); cylinder connecting frames A (106) are arranged at positions corresponding to the crystal holder centering cylinder (107) at the bottoms of the two length clamping connecting frames (102); the cylinder connecting frames A (106) and the crystal holder centering cylinder (107) are movably connected through connecting pins; length positioning front grippers (104) are arranged at the front ends of the length clamping connecting frames (102); fixed stop blocks (103) and centering pulleys (105) are arranged on the length positioning front grippers (104); tail straight line guide rails (117) are arranged on the upper surfaces of the rear ends of the length clamping connecting frames (102); length positioning rear grippers (112) are arranged on the tail straight line guide rails (117); crystal holder length positioning cylinders (109) are arranged on the side surfaces of the rear ends of the length clamping connecting frames (102); the crystal holder length positioning cylinders (109) are connected with the length positioning rear grippers (112) through length positioning cylinder connecting plates (110); crystal holder pushing stop blocks (113) and centering pulleys are arranged on the length positioning rear grippers (112); connecting plates are further arranged on the tail straight line guide rails (117); adhesive plate length positioning supports (115) are arranged on the connecting plates; adhesive plate length positioning stop blocks (114) are arranged at the front ends of the adhesive plate length positioning supports (115); adhesive plate length positioning cylinders (111) are connected with the adhesive plate length positioning supports (115) through adhesive plate length positioning cylinder connecting frames (116) and connecting plates; The adhesive plate width positioning mechanism (2) comprises two adhesive plate width positioning connecting frames (202) which are symmetrically arranged left and right; two straight line guide rails B (204) are arranged below the two adhesive plate width positioning connecting frames (202); the two adhesive plate width positioning connecting frames (202) slide on the two straight line guide rails B (204) through sliding blocks to realize left and right movement; adhesive plate width centering cylinders (205) are arranged below the two adhesive plate width positioning connecting frames (202); cylinder connecting frames B (203) are arranged at positions corresponding to the adhesive plate width centering cylinders (205) at the bottoms of the two adhesive plate width positioning connecting frames (202); the cylinder connecting frames B (203) and the adhesive plate width centering cylinders (205) are movably connected through connecting pins; two adhesive plate width centering stop blocks (201) are respectively arranged on the upper portions of the two adhesive plate width positioning connecting frames (202). The bottom frame (4) comprises a frame body (401) which is connected with the ground through a foot at the bottom; The detection switch mechanism (5) comprises a detection switch support (501) which is fixed on the bottom frame (4) through bolts and a lower connecting plate (505); the upper part of the detection switch support (501) is provided with a silicon rod incoming material detection switch (502), a viscose plate incoming material detection switch (503) and a crystal holder incoming material detection switch (504).

2. A photovoltaic silicon rod triad positioning device as described in claim 1, wherein, The silicon rod width positioning mechanism (3) comprises two silicon rod width positioning connecting frames (302) which are symmetrically arranged left and right; two straight line guides C (308) are arranged below the two silicon rod width positioning connecting frames (302); the two silicon rod width positioning connecting frames (302) are slidably arranged on the two straight line guides C (308) through sliding blocks to realize left and right movement; a silicon rod width positioning cylinder (309) is arranged below the silicon rod width positioning connecting frame (302); the silicon rod width positioning cylinder (309) is connected with the silicon rod width positioning connecting frame (302) through a silicon rod cylinder connecting frame (307); the bottom of each silicon rod width positioning connecting frame (302) is provided with an adjusting rack connecting frame (303); a rack (304) is arranged on each adjusting rack connecting frame (303); the two racks (304) are connected with the two sides of a same centering gear (305); the two racks (304) are synchronously moved towards each other through meshing with the centering gear (305); and a silicon rod positioning push plate (301) is arranged on the upper part of each silicon rod width positioning connecting frame (302).

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